Disc Wafer Check Valve

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Cast iron valves
Size: DN40-1200 or 1.5-48' or above
Working Pressure: PN10/16/20/25, 150LB-2500LB
Suitable temperature: -45c~150c
Standard:
(1)Design and manufacture: DIN3352, BS5163, BS5150, ANSI B16.34, API600, API6D, API609, EN593, GB, T12238
(2)End connection: ANSI B 16.1, ASME B16.5, B16.47, B16.25, B16.34, JISB2212-JISB2214, DIN2543-2550, EN1092, AS2129, ISO 5211
(3)Wall thickness: API600, BS1868
(4)Face to face (end to end): EN 558, ASME B16.10, DIN3202, ISO5752, JIS, API609, MSS, BS5155
(5)Inspection and test: API598, EN12266-1, BS6755, API6D, ISO5208
Materialfor main parts:
(1)Body: CI, DI, WCB, ALB, CF8, CF8M
(2)Disc: DI, ALB, C95400, Rubber lined Disc, 1.2501, 1.4529, CF8M, CF8, Hastelloy
(3)Stem: SS416, SS410, SS304, SS431
(4)Seat: NR, Hypalon, EPDM, Neoprene, NBR, Wear-Resistant EPDM, Viton, Silicon, Heat-Resistant EPDM, WhiteNBR, WhiteEPDM, EPDM, PTFE
Coating: Fusion bonded epoxy coated
Connection type: Flanged type, Push-on type, Mechanical Joint type, Plain ends type
Sealing: Soft sealing or metal-to-metal seat, Flexible graphite
Operation: Manual, Pheunatic, Electric, Hydraulic and Pnewmatic-Hydraul
Appropriate medium: Air, water, sewage, steam, coal gas, oil
Packaging: Export polywood cases, or as per customers' requirements
Application: Fresh water, sewage, sea water, air, vapor, food, medicine, oils. Acids, alkalis, salt etc.

Item	Wafer type check valve
Standard	DIN/ANSI/BS
Body material	CI/DI/CS
Disc material	SS
Pressure	PN16/CLASS125

Q: What brand of double live catch valve is good?: The best is gold, the sun and the sun! And Dr. water is not bad. What package fifty years are Pihua, generally as long as the master work basic pipe will not be a problem. It's important for the master to do the work

Q: Copper ball Q11F-20T is what mean?: Q ball valve1 internal thread1 throughF PTFE soft seal20=20PA=2.0mpa pressureT copper material

Q: DN15 stainless steel ball valve 304 can withstand much pressure?: All pipe attachments of the same nominal diameter indicated by the same nominal pressure PN have the same connection dimension as the end connection type.GB stainless steel ball valve pressure class PN: 1.6MPa, 2.5MPa, 4.0MPa, 6.4MPa, 10.0MPa and so on. These values correspond to how much stress you can bear.

Q: What q25r-j159 BB-F-TE-NB represents American Standard ball?: American Standard top mounted hard seal fixed ball valve modelQ: valve type - ball valve, BALL, VAVE2: pressure class -150cl pounds scale5: structural form - tethered body, top mounted, fixed ball (abbreviated BB-F-TE-NB)R: connection form -RF convex mesa flange connectionJ1: body material -A216-WCB cast carbon steel59: spool material -13%Cr

Q: The difference between a cricket valve and a constant pressure valve: Ball valve for ball ball column shape and called, is mainly to be closed, and often switch when the fluid flow control to throttle function and design, is the main characteristic of effective throttling, to minimize and reduce the phenomenon of drawing valve and valve seat dip (wash) inhibition, but because of the seat is parallel to the line, change the flow of fluid through the valve seat will be in class.

Q: What are the inside parts of the ball valve?: The universal ball valve includes the stem, valve ball, seat, seat seal and packing.

Q: The toilet water pipe valve is broken, with a new twist, how are the screw does not move, then they told me to go on to the pipe on the water and then tighten, did as he said, really screwed, but do not know why, please tell the master what is the principle, if it is water without water when the screw does not move, but when the water can twist. What a kink!Is the water valve normal, a pull rod, pulling it back flush, do not rush the kind, the middle is a hollow ball: I think it should be the water holding gas, connecting device principle, at the bottom of the hand, barometric pressure, and the best you can last map, I'll see

Q: Under what circumstances with the butterfly valve, under what circumstances with the ball valve?: Selection principle of ball valve:1, oil, natural gas transmission mains, need to clean the pipeline, and be buried in the ground, all pass by, the ball valve full welded structure; buried in the ground, select all pass through ball valve welded connection or flange connection; pipe flange connection, welding, selection of connection, all pass through or shrink the diameter of the ball valve.2, product oil pipeline and storage equipment, choose flange connected ball valve.3, the city gas and natural gas pipeline, choose flange connection and internal thread of the floating ball valve.1 、 in the oxygen piping system of the metallurgical system, the fixed ball ball valve should be selected after the strict degreasing treatment and the flange connection.2, low temperature medium piping system and device, should choose to use the valve cover of low temperature ball valve.3 、 the lifting rod type ball valve can be used on the pipeline system of the catalytic cracking unit of the oil refining unit.4, chemical systems such as acid and alkali corrosive media and piping systems, it is appropriate to choose austenitic stainless steel, PTFE seat sealing ring for all stainless steel ball valve.5 、 metal to metal sealing ball valve can be used in metallurgy system, power system, petrochemical equipment, piping system or device of high temperature medium in city heating system. 6, the need for flow regulation, you can choose the worm gear drive, pneumatic or electric with V shaped opening of the regulating valve.

Q: The difference between gate valve, ball valve and butterfly valve: Gate valve: there is a flat plate in the valve body which is perpendicular to the direction of the medium flow, and the plate is lifted and closed.Features: good tightness, fluid resistance small, open and close force is small, widely used, also have to regulate the flow performance, generally applicable to the large diameter of the road.Ball valve: the use of a hole in the middle opening of the ball as the spool, by rotating the ball to control the opening and closing of the hair.Features: the structure is simpler than the gate valve, small size, low fluid resistance, and can replace the role of gate valve.Butterfly valve: closure is a disk-shaped, around a fixed axis rotation of the valve body.The utility model has the advantages of simple structure, small size and light weight, and is suitable for making larger diameter valves. As the sealing structure and materials are still problems, it is only used for low pressure, for the transport of water, air, gas and other media!Own code words, hope to adopt!

Q: Domestic water pipe ball valve or cut-off valve?: So, in the regular switch to the place, with the ball valve convenient, in the need to adjust the flow of the place and do not need to switch regularly, with a good cut-off valve.

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